Sound, science, solutions

The company name says it all: we develop embedded systems for acoustic applications. You'll find designs developed by our team in products sold by companies all over the world - small businesses as well as Fortune 500 companies.

Bedrock SM50 STIPA meter Embedded Acoustics is the designer and manufacturer of the Bedrock SM50. The introduction of the Bedrock STIPAmeter brings good news to many: finally a STIPA meter that is accurate, reliable and affordable at the same time!…

Optimization of communication systems Any electro-acoustic system used for communication, whether it is a military radio or a public address system, can only perform if it is tuned for its acoustic environment. This sounds logical - yet a properly optimised…

Hearing protection and sound dose monitoring Simply blocking as much sound from the outside world as you can is just not good enough. The key is always to find the proper balance between competing design criteria: sound attenuation, speech intelligibility,…

Real 3D audio Essentially, 3D audio offers the experience of a three-dimensional acoustic environment, while sound is produced though headphones or just a single pair of loudspeaker. 3D audio is known through its entertainment applications, and for creating an immersing…

Embedded Acoustics is committed to sparking innovation in the fields of acoustics, speech and hearing. Our mission is to translate scientific knowledge and high-tech engineering into working, real life products and services. We're not just talk - get in touch and find out what we are all about: expertise, experience and a practical mindset.

For an introduction to speech intelligibility testing, please have a look at the instruction video below.

Beta testers wanted for our Personal Data Recorder

Our award winning Personal Data Recorder (PDR) is currently going through an extensive test programme. The PDR is a personal "black box" that we initially developed for first responders and law enforcement officers, but is now also attracting the interest of a variety of other professionals to whom security is a concern. The Personal Data Recorder features all sensors found on modern body-worn cameras (bodycams), and more. We constantly store all audio and video recorded by the device, but also GPS position, compass direction, G-forces and other data.

The PDR combines features not found together in any other (single) device, such us the ability to record video continuously for more than 10 hours and end-to-end encryption. But more importantly, the PDR is uniquely capable of synchronized operation with many other PDRs - theoretically up to infinite numbers. We provide analysis software that is capable of combining data from 100+ different PDRs to get a comprehensive and instant overview of even the most complex scene. Our initial tests and field trials were very encouraging. We are currently looking for beta testers, preferably in the Netherlands or Belgium. If you are interested, please contact us at PDR@embeddedacoustics.com

New firmware for the Bedrock SM50 adds FFT and RT60

We have just released firmware version 1.6 for the Bedrock SM50. New units now ship with this version. Upgrading is free for all existing users.

Post-hoc addition of noise (measure noise during the day, STIPA at night)

Fully compliant class 2 / type 2 SLM (IEC-61672 / ANSI S1.4

A,C, and Z (unweighted) frequency weightings

Time weighting/averaging: Fast, Slow, EQ, Max Hold, Peak

1/3 or 1/1 octave band equalizer with class 0 filters (IEC-61260)

FFT analyser

256 to 32768 spectral lines

All common window types

RT60 reverberation time measurement (ISO 3382-2)

Interrupted noise method

EDT, T20 and T30

Supports averaging of multiple measurements

Calibrated audio recording

Intuitive full-colour touch screen interface

Includes microphone, charger, windscreen and all other accessories you might need

Comes with 24-month worldwide pick-up&return warranty

More features to come through free firmware upgrades

For more information or to place your order, contact your local distributor or get in touch with our sales department.

Acoustics consulting staff now offshore qualified

Embedded Acoustics is known to apply its knowledge to technical consulting projects in a wide variety of application fields, ranging from trains to airplanes, and from road tunnels to concert halls. We are proud to announce that we have now extended our scope to offshore activities. Embedded Acoustics staff have acquired the necessary certificates for working on offshore platforms anywhere in the North Sea region (NOGEPA, OPITO, OLF).

Services offered to the offshore sector include all types of acoustic measurements, including speech intelligibility measurements for verification and evaluation of evacuation systems and general announcement systems.

White paper: measuring STIPA in practice

Speech Transmission Index measurements are now widely accepted as a rigorous and validated way to determine speech intelligibility. STIPA measuring tools such as our own Bedrock SM50 are used ever more widely - also be people new to acoustic testing and to the Speech Transmission Index concept. Although STIPA is thoroughly documented, through standards as well as a vast body of scientific papers, the current documentation is not easily accessible.

We just wrote a new white paper to assist newcomers in getting started with STIPA. More seasoned users may also find the white paper useful. It fills the gap between the pragmatic level of the user manual and the abstract level of our scientific publications.